/**
*    Copyright (C) 2008 10gen Inc.
*
*    This program is free software: you can redistribute it and/or  modify
*    it under the terms of the GNU Affero General Public License, version 3,
*    as published by the Free Software Foundation.
*
*    This program is distributed in the hope that it will be useful,
*    but WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*    GNU Affero General Public License for more details.
*
*    You should have received a copy of the GNU Affero General Public License
*    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*
*    As a special exception, the copyright holders give permission to link the
*    code of portions of this program with the OpenSSL library under certain
*    conditions as described in each individual source file and distribute
*    linked combinations including the program with the OpenSSL library. You
*    must comply with the GNU Affero General Public License in all respects for
*    all of the code used other than as permitted herein. If you modify file(s)
*    with this exception, you may extend this exception to your version of the
*    file(s), but you are not obligated to do so. If you do not wish to do so,
*    delete this exception statement from your version. If you delete this
*    exception statement from all source files in the program, then also delete
*    it in the license file.
*/

#pragma once

#include "mongo/db/extsort.h"

namespace mongo {

    /** for bottom up fastbuildindex (where we presort keys) */
    struct SortPhaseOne {
        SortPhaseOne() {
            n = 0;
            nkeys = 0;
            multi = false;
        }
        shared_ptr<BSONObjExternalSorter> sorter;
        shared_ptr<ExternalSortComparison> sortCmp;

        unsigned long long n; // # of records
        unsigned long long nkeys;
        bool multi; // multikey index

        void addKeys(const BSONObjSet& keys, const DiskLoc& loc, bool mayInterrupt) {
            multi = multi || (keys.size() > 1);
            for (BSONObjSet::iterator it = keys.begin(); it != keys.end(); ++it) {
                sorter->add(*it, loc, mayInterrupt);
                ++nkeys;
            }
            ++n;
        }
    };

}  // namespace mongo
